New images of a person of interest in the mass shooting at Brown University|@FBIBoston|X

Police have released new images and videos of the suspected Brown University shooter who killed two college students, Ella Cook and Mukhammad Aziz Umurzokov, and left nine others injured on Saturday.

With the manhunt still on, FBI Director Kash Patel said the agency is offering a $50,000 reward for any information that could lead to an arrest.

Some security analysts suggest that the initial focus on the wrong person may have delayed finding the killer by as much as 24 hours.

The attack has brought the Ivy League campus to a standstill, with all classes and exams officially canceled.

It is one of at least 75 school shootings recorded in the US this year. Rhode Island Governor Dan McKee has ordered a comprehensive review of safety protocols across educational institutions.